ADS1240
- 24 BITS NO MISSING CODES
- SIMULTANEOUS 50Hz AND 60Hz REJECTION (-90dB MINIMUM)
- 0.0015% INL
- 21 BITS EFFECTIVE RESOLUTION (PGA = 1), 19 BITS (PGA = 128)
- PGA GAINS FROM 1 TO 128
- SINGLE-CYCLE SETTLING
- PROGRAMMABLE DATA OUTPUT RATES
- EXTERNAL DIFFERENTIAL REFERENCE OF 0.1V TO 5V
- ON-CHIP CALIBRATION
- SPI™ COMPATIBLE
- 2.7V TO 5.25V SUPPLY RANGE
- 600µW POWER CONSUMPTION
- UP TO EIGHT INPUT CHANNELS
- UP TO EIGHT DATA I/O
- APPLICATIONS
- INDUSTRIAL PROCESS CONTROL
- WEIGHT SCALES
- LIQUID/GAS CHROMATOGRAPHY
- BLOOD ANALYSIS
- SMART TRANSMITTERS
- PORTABLE INSTRUMENTATION
All trademarks are the property of their respective owners.
The ADS1240 and ADS1241 are precision, wide dynamic range, delta-sigma, analog-to-digital (A/D) converters with 24-bit resolution operating from 2.7V to 5.25V supplies. These delta-sigma, A/D converters provide up to 24 bits of no missing code performance and effective resolution of 21 bits.
The input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit digital-to-analog converter (DAC) provides an offset correction with a range of 50% of the FSR (Full-Scale Range).
The Programmable Gain Amplifier (PGA) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable FIR filter that provides a simultaneous 50Hz and 60Hz notch. The reference input is differential and can be used for ratiometric conversion.
The serial interface is SPI compatible. Up to eight bits of data I/O are also provided that can be used for input or output. The ADS1240 and ADS1241 are designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | 24-Bit, Analog-to-Digital Converters 数据表 (Rev. F) | 2013-10-8 | |||
| 应用手册 | Δ-Σ ADC 中的数字滤波器类型 (Rev. A) | PDF | HTML | 英语版 (Rev.A) | PDF | HTML | 2023-4-13 | |
| 应用手册 | Implementing a Direct Thermocouple Interface With the MSP430F4xx and ADS1240 (Rev. B) | 2018-5-29 | ||||
| 应用手册 | Measuring Single-Ended 0V-5V Signals with Differential Delta-Sigma ADCs (Rev. A) | 2015-5-18 | ||||
| 应用手册 | The Offset DAC (Rev. A) | 2015-4-1 | ||||
| 电子书 | Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs | 2015-3-19 | ||||
| 应用手册 | Overclocking the ADS1240 and ADS1241 (Rev. A) | 2004-7-8 | ||||
| 应用手册 | Inputs Currents for High-Resolution ADCs | 2003-3-6 | ||||
| 应用手册 | Accessing the Onboard Temperature Diode in the ADS1240 and ADS1241 | 2002-10-4 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
ANALOG-ENGINEER-CALC — PC software analog engineer's calculator
模拟工程师计算器旨在加快模拟电路设计工程师经常运用的许多重复性计算。该基于 PC 的工具提供图形界面，其中显示各种常见计算列表，从使用反馈电阻器设置运算放大器增益到选择合适的电路设计元件，以稳定模数转换器 (ADC) 驱动器缓冲器电路。
除了可用作独立工具之外，该计算器还能很好地与模拟工程师口袋参考中所述的概念配合使用。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SSOP (DB) | 24 | Ultra Librarian |